/**
 * Licensed to the Apache Software Foundation (ASF) under one
 * or more contributor license agreements.  See the NOTICE file
 * distributed with this work for additional information
 * regarding copyright ownership.  The ASF licenses this file
 * to you under the Apache License, Version 2.0 (the
 * "License"); you may not use this file except in compliance
 * with the License.  You may obtain a copy of the License at
 *
 *     http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */

package org.apache.tajo.ws.rs.netty.testapp2;

import javax.ws.rs.*;
import javax.ws.rs.core.*;
import java.net.URI;
import java.util.Collection;

@Path("/directories")
public class DirectoriesResource {

  @Context
  UriInfo uriInfo;

  @GET
  @Produces(MediaType.APPLICATION_JSON)
  public Response getAllDirectories() {
    Collection<Directory> directories = DirectoriesDao.getInstance().getDirectoryMap().values();
    GenericEntity<Collection<Directory>> dirEntities =
        new GenericEntity<>(directories, Collection.class);
    return Response.ok(dirEntities).build();
  }

  @POST
  @Consumes(MediaType.APPLICATION_JSON)
  @Produces(MediaType.APPLICATION_JSON)
  public Response createDirectory(Directory directory) {
    String directoryName = directory.getName();

    if (directoryName == null || directoryName.isEmpty()) {
      return Response.status(Response.Status.BAD_REQUEST).build();
    }

    DirectoriesDao.getInstance().getDirectoryMap().put(directoryName, directory);

    UriBuilder uriBuilder = uriInfo.getBaseUriBuilder();
    URI directoryUri = uriBuilder.path(DirectoriesResource.class)
        .path(DirectoriesResource.class, "getDirectoryByName")
        .build(directoryName);

    return Response.created(directoryUri).entity(directory).build();
  }

  @GET
  @Path("{name}")
  @Produces(MediaType.APPLICATION_JSON)
  public Response getDirectoryByName(@PathParam("name") String directoryName) {
    Directory directory = DirectoriesDao.getInstance().getDirectoryMap().get(directoryName);

    if (directory == null) {
      return Response.status(Response.Status.NOT_FOUND).build();
    }

    return Response.ok(directory).build();
  }

  @DELETE
  @Path("{name}")
  public Response deleteDirectory(@PathParam("name") String directoryName) {
    if (!DirectoriesDao.getInstance().getDirectoryMap().containsKey(directoryName)) {
      return Response.status(Response.Status.NOT_FOUND).build();
    }

    DirectoriesDao.getInstance().getDirectoryMap().remove(directoryName);

    return Response.ok().build();
  }
}
